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Optical constants of CDGM - ZLAF (Dense lanthanum flint)
H-ZLAF89L

Wavelength: µm
 (0.360 – 2.400)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.66932806-0.0136919991λ^{2}+0.0484216361λ^{-2}+0.00132160482λ^{-4}+2.4217258\text{×}10^{-05}λ^{-6}+8.50124351\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -4.45e-07 1.4e-08 -3.45e-11 9.44e-07 1.04e-09 0.253
nd: 1.953749
Vd: 32.318108
glass_code: 954323
density: 5.1 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 7.2e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 8.8e-06 K-1
dPgF: -0.0002
climatic_resistance: 1.0

References

CDGM Zemax catalog 2017-09 (obtained from http://www.cdgmgd.com)

Data

[Expressions for n]   [CSV - comma separated]   [TXT - tab separated]   [Full database record]

INFO

CDGM Glass Co., Ltd.

CDGM Glass Co., Ltd. is a leading optical glass supplier in China with a worldwile distribution network.

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